I would like to know if there is a way to send a message to a running process on linux ? For example, is it possible to programmatically “pause” a video launched with mpv. Answer To control mpv remotely (eg from another terminal session) you can also start it with the option and control it by issuing commands like this:
How to let linux(raspberry) run python script when plugin power?
I have a python script(namely /home/pi/x.py). And I have tried a lot of ways to let the program, some thing such as: (I am thinking am I right here(Provides: Python)?) I have modified this bash from its original form, and put it in sudo chmod +x /etc/init.d/mystart sudo update-rc.d mystart defaults However, when I try to:sudo service mystart start Some
Completely Fair Scheduler (CFS): vruntime of long running processes
If vruntime is counted since creation of a process how come such a process even gets a processor if it is competing with a newly created processor-bound process which is younger let say by days? As I’ve read the rule is simple: pick the leftmost leaf which is a process with the lowest runtime. Thanks! Answer The kernel documentation for
How would a Python script running on Linux call a routine in a Python script running under Wine?
I have a Python (3) script running on Linux, referred to as the main script, which has to call a routine from a proprietary DLL. So far, I have solved this with Wine using the following construct: The script dll_call.py is executed by a Windows Python (3) interpreter installed under Wine. It dumps the return values into a file which
Python Wlan Manager
Is there a way in python to check whether a Wlan router is accessible? Something like I give as input the SSID and the password and get as response if it has worked or not? Answer Check out the wireless library.
Limit Qlistview to 1 selected item at most
I try to compel the program to select the 1st item(and only it) in the QListview if user’s selection is more 1 and includes the 1st item. The selectionMode flag is multiselection, which means user can select several items in the listview. Below is my code: in the constructor: But this code does not work. It only deselects the last
How do we compile kernel code in C?
I am new to C and Linux. I am trying to compile the below code but it gives some fatal error while compiling. Any help on fixing this appreciated. Here is the code measurecpu.c: I am trying to compile it this way: I get this error: Answer I am trying to compile it this way gcc -c -O2 -W -Wall
bash script version of forfiles
I’m currently converting a DOS batch script to a shell script and while I have 99% of it working, one part I cannot figure out how to convert over. In the batch file, I have a line that looks like How would I write that for a shell script? Answer Try this, this will delete files without prompting To be
Linux scheduling. (pthreads)
I’m trying to play around with threads and so far, with the code below, I’m doing fine. I want also want to print the current index of the executing thread but I’ve encountered some problems. I’m trying to print the current executing thread along with “Hello world!”. But, the output is this… So far, I’ve already tried issuing What can
How do I configure QT5 without Xlib
I am trying to configure (and build) QT5 static. I want it to draw to the framebuffer and use webkit. I searched the docs but I didn’t find anything on how I can do this without X. Does anyone know a way of doing this ? Answer Building Qt statically is totally orthogonal to the platform selection. Depending on your